Baker s oven



NI'TED STATES PATENT rrrce.

l VILLIAM LENDEROTH, OF ROSEBANK, NEV YORK.

BAKERS OVEN.

SPECIFICATION forming part of Letters Patent No. 475,403, dated May 24, 1892. Application filed December 31, 1891. Serial No. 416,724. (No model.)

To aZZ whom, it may concern.-

Be it known that 1, WILLIAM LENDEROTH, a resident of Rosebank, Richmond county, Staten Island, and State of New York, have invented an Improvement in Bakers Ovens, of which the following is a full, clear, and exact description.

My invention relates to certain new and useful improvements in bakers ovens; audit consists in the novel arrangement and combination of parts hereinafter more fully described and claimed.

' My invention is illustrated in the accompanying drawings, in which- Figure 1 is a vertical section of the improved oven on the line 1 1, Fig. 2. Fig. 2 is a horizontal section on the line 2 2, Fig. 1, showing the arrangement of the combustion-chamber. Fig. 3 is a vertical section on the line 3 3, Fig. 2; Fig. 4, a horizontal section on the line 4 4, Fig. 3, showing the arrangement of the hotair fines. Fig. 5 is a vertical section on the line 5 5, Fig. 6; and Fig. 6, a horizontal section on the line 6 6, Fig. 5, showing the arrangement of the hot-air and combustion fines.

A is the grate or fireplace of the oven, commnnicating with the fire-room A which extends beneath the whole oven-floor. (See Fig. 2.) This fire-room A is by preference formed with an arched roof suitably supported upon the walls of the oven and upon piers A The heat from the fireplace communicates with the entire space of the fire-room. At the four corners of this fire-room are placed fines a a a, a, each provided with a damper a and leading, as hereinafter more fully described, to a common fine or chimney a The dampers a maybe placed at the lower parts of the fines a, as shown in Fig. part of said fine a, as shown in Fig. 6, or at any convenient part of said fiue. Immediately above the fire-room is placed a series of air-fines 1), divided by partitions which support the fioor of the baking-chamber. At the corners of the series of air-fines b are four fines b b 19 b Air is admitted to the series ofair-fines I) through fines b 12 leading from the outside of the oven. The fines b may be provided with dampers 19 The fines b b may also be provided with outside dampers b. Directly above the air-fines b is the baking-chamber O, which is connected with the 2, or at the upper.

air-fines b by one or more fines c c, and also connected directly with the smoke-stack or chimney a by passage 0 provided with a damper 0 Above the baking-chamber O is arranged a series of channels (1 d into which channels the air and heat fines respectively lead. These channels conduct both air and heat over the top of the oven to horizontal fines to the smoke-stack or chimney a The operation is as follows: Heat is led from the fireplace A through the fire-room A to the fines a at the corners of the oven up to the channels (1 on top of the baking-chamber O, the products of combustion being led into and through said channels (1 to the horizontal fiues (1 from which they escape into the chimney a Air is admitted through the fines b 12*, regulated by outside dampers b into the hot-air fines I), through which fines it circulates, and being heated to ahigh degree passes freely in and out of the baking-compartment 0 through the fines c c, and also passes into the corner vertical fines b and up to the channels d on top of the baking-chamber. The air circulates in these channels d until it is finally conducted to the horizontal fine I), through which it passes to the chimney a The air in the baking-chamber 0, instead of passing back into the air-fines, may be passed directly from the chamber 0 into the chimney.

The advantages of this construction of furnace are many. I

First. By the arrangement of the fines Ct at a a, and their dampers a the heat in the firechamber A may be easily regulated and localized, thus saving fuel and time.

Second. The connection of the air-fines b with the outside air forms asteady current of heated air beneath the fioor of and in the baking-compartment, and the heat is thereby evenly distributed to any part of the bakingchamber.

Third. The direct communication between the baking-chamber O and the air-fines b as regulated by the dampers allows of the admission of air into the baking-chamber to a more or less extent, and so the temperature of the baking-chamber C may be regulated at will.

Fourth. By reason of the direct communication between the baking-chamber C and the chimney a and the interposed damper c and too by opening the outside damper h the heated C, with air-fines Hand-fines c a leading from air in the baking-chamber may be rapidly or said air-fines 1) into the baking-chamber (3, slowly drawn off and cold air substituted to substantially as described.

cool the chamber as desired. 3. The combination of the fire-room A bak- 2o 5 Having described my invention, what I ing-chamber O, and air'flues b,interposed beclaim is tween said fire-room A and baking-chamber 1. The combination of the baking-chamber C, with air-fines b and fines c a, leading from C, fire-roon1A and series of air-fines b with said air-fines 12 into the baking-chamber 0, one or more fines b for conducting air from and with outside dampers b, flue c damper z 5 m the exterior of the oven into said flues b, said 0 and chimney a, said fine 0 leading from air-fines I) being interposed between the baksaid baking-chamberO direct to said chimney ing-chamber C and fire-room A substantially at, substantially as described.

as and for the purposes described. WILLIAM LENDEROTI-I.

2. The combination of the fire-room A bak- Witnesses: I 5 ing-chamber O, and air-flues b, interposed be- HARRY M. TURK,

tween said fire-room A and baking'chamber L. M. WACHSCHLAGER. 

